Can a trend line go on forever if so why
No, a trend line cannot go on forever. A trend line is a line that shows the general direction of a series of data points over time. It is used to identify and visualize trends, patterns, and relationships in the data.
The length of a trend line is determined by the range of data points it represents. It is not possible for a trend line to continue indefinitely because there is always a limit to the data available. In other words, trends are bound by the extent of the dataset.
If you have a finite dataset, you can calculate a trend line using mathematical techniques such as linear regression. This involves finding the best-fitting line that represents the overall trend in the data. However, it is important to note that the trend line will only be accurate within the range of the data points it is based on.
In summary, while a trend line can extend beyond the existing data points to make predictions or projections, it cannot go on indefinitely as it is limited by the available data.